Maps have become almost nonexistent or at least near impossible to find or get to either because they can’t spawn due to walls, spam or defenses on islands.
My suggestion is, move the spawn points of the maps in a bottle to the sunken ships in the oceans in each grid. Granted it’ll still be almost impossible to collect your treasures due to defenses on enemy islands but it could be an excellent bargaining chip for extra peace time during combat phases against pestering companies, exchange of resources, or exchanges of maps that are on your island or on a neighboring alleys island.
ideas and suggestions.